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Finding the Fourth Proportional to 529,867.80, 794,801.70 and 521,994.60

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Solution

The fourth proportional to 529,867.80, 794,801.70 and 521,994.60 is: 782,991.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,867.80 : 794,801.70 = 521,994.60 : x
  2. Step 2: Convert to fraction form
    529,867.80/794,801.70 = 521,994.60/x
  3. Step 3: Cross multiply
    529,867.80x = 794,801.70 × 521,994.60
  4. Step 4: Simplify right side
    529,867.80x = 414,882,195,470.82
  5. Step 5: Solve for x
    x = 414,882,195,470.82/529,867.80
  6. Step 6: Final answer
    x = 782,991.90

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.